KR20080084190A - Head lamp - Google Patents

Abstract

A head lamp is provided to improve portability by using a battery pack composed of a light lithium ion polymer battery and prevent generation of sparks due to gas by having a switching terminal and an electronic switch. A case has a receiving space, and one surface thereof is opened. A cap has a through hole and is detachably coupled with the case. A substrate is installed in the receiving space of the case and has first and second light emitting diodes. One end of a heat radiating member is connected to the substrate, and the other end thereof is fixed to an inner surface of the case. A holder is fixed to the substrate to be positioned between the cap and the substrate and has a packing on an outer peripheral surface. A condensing lens is installed in the holder. A lighting unit(10) is installed in the receiving space of the case and has a switch to control emission of the first and second light emitting diodes by exposing a control knob outside the case. A battery pack(20) has a battery inside and power terminals(22) exposed outside. A cable(30) connects the lighting unit and the battery pack and transmits power stored in the battery pack to the first and second light emitting diodes.

Description

Headlamp {HEAD LAMP}

1 is a perspective view showing a conventional head lamp,

Figure 2 is a perspective view showing the back of the lamp of the conventional headlamp,

3 is a view showing a head lamp according to the present invention,

Figure 4 is an exploded perspective view showing the lamp of the headlamp according to the present invention,

Figure 5 is a side cross-sectional view showing a light bulb of the headlamp according to the invention,

Figure 6 is a side cross-sectional view showing a state in which the auxiliary heat sink is further provided in the head lamp according to the present invention,

7 is a schematic view showing a battery pack and a charger of the headlamp according to the present invention,

8 is a view showing an operating state of the headlamp according to the present invention.

<Explanation of symbols for main parts of the drawings>

10: lighthouse 11: case

12 cap 13 substrate

13a: first light emitting diode 13b: second light emitting diode

14: heat dissipation member 15: holder

16: condenser lens 17: switch

18: protective plate 19: hook

20: battery pack 21: rechargeable battery

22: power supply terminal 23: locking member

24: switching terminal 25: electronic switch

25a: light emitting portion 25b: light receiving portion

30: cable 40: auxiliary heat sink

50: charger

The present invention relates to a head lamp that can be used for a long time, is easy to carry, and has easy battery management.

Conventional headlamps are composed of a light bulb (1), a lead battery (2), and a cable (3), such headlamps are provided with tungsten filament in the receiving space, as shown in Figs. Light bulb 1-1 is installed, the switch (1-2) for turning on / off the light bulb (1-1) is provided on one side, the positive charge terminal (1-3) installed on the rear and the inside of the rear A case (1-4) formed with a negative charging terminal (not shown) provided, a cap (1-5) detachably installed on the case (1-4), the case (1-4) and a cap ( 1-5) is provided between the light bulb (1) made of a protective plate (1-6) for protecting the light bulb (1-1); Sulfur electrolyte (2-1) and lead (2-2) composed of 10% by weight of sulfuric acid and 90% by weight of water are contained in the partitioned partition, and an inlet (2-3) for replenishing water on both sides And a blocking member (2-4) for blocking the injection hole (2-3), the lead battery (2) formed with a hook ring (not shown) on one side to be detachable to the user's waistband; And a cable 3 which connects the bulb 1 and the lead battery 2 to transfer the power of the lead battery 2 to the bulb 1-2 of the bulb 1. Lamps are mainly used by miners working at the mine's barrier, and gas is often generated at the mine's membrane, so the headlamp has an explosion-proof structure.

However, bulbs equipped with tungsten filamin often have a problem that is frequently broken when the bulb is turned on / off by manipulating a switch, and the bulb has a long life, and thus the bulb has a long life and often needs to be replaced. There was a problem that the work efficiency is reduced.

In addition, the lead battery has a considerable weight, and also has a disadvantage in that the output is sharply reduced in the cold place, there is a problem to replenish water if insufficient after checking the sulfate electrolyte before going to work.

In addition, there is a problem that the blocking member for blocking the inlet for replenishing water is formed by fitting type, so that the blocking member is separated from the inlet and the sulfuric acid electrolyte contained in the lead battery is leaked to the outside to cause injury to the human body. there was.

Accordingly, the present invention has been proposed to solve the above problems according to the prior art, and an object thereof is to provide a head lamp that can be used for a long time without failure of a component, and is easy to manage and carry a battery.

Features of the headlamp according to the present invention for achieving the above object,

A case having one side open and having a receiving space, a through hole provided at an inside thereof, a cap detachably fastened to the case, a substrate installed in the receiving space and provided with first and second light emitting diodes; One end is connected to the substrate, the other end is a heat dissipation member fixed to the inner surface of the case, the holder is fixed to the substrate so as to be located between the cap and the substrate, the holder is provided on the outer periphery, and installed in the holder A light collecting lens having a condensing lens and a control knob installed in the accommodation space and formed at one side of the control knob to be exposed to the outside of the case to control light emission of the first and second light emitting diodes;

A battery pack provided inside the battery pack and having a power terminal exposed to the outside; And

The light bulb and the battery pack are connected to each other, and are configured to transmit power stored in the battery pack to the first and second light emitting diodes of the light bulb.

Hereinafter, a preferred embodiment of the headlamp according to the present invention will be described with reference to the accompanying drawings.

Figure 3 is a view showing a head lamp according to the invention, Figure 4 is an exploded perspective view showing a light bulb of the head lamp according to the invention, Figure 5 is a side cross-sectional view showing a light bulb of the head lamp according to the invention, Figure 6 Is a side cross-sectional view showing a state in which the auxiliary heat sink is further provided in the head lamp according to the present invention, Figure 7 is a schematic view showing a battery pack and a charger of the head lamp according to the invention, Figure 8 is a head lamp of the present invention It is a figure which shows the operation state.

As shown in FIGS. 3 to 5, the headlamp according to the present invention includes a lamp 10, a battery pack 20, and a cable 30.

The lamp 10 has an explosion-proof structure, one side of the opening (11a), the receiving space (11b) is provided, a pair of holes in which the switch 17 and the cable 30 to be described later on both sides ( A case 11 having a 11c), a through hole 12a provided therein, a cap 12 detachably fastened to the case 11, and a first light emitting diode installed in the accommodating space 11b. A substrate 13 having a 13a and a second light emitting diode 13b, one side of which is connected to the substrate 13, and the other side of which is fixed to an inner surface of the case 11 so as to fix the first light emitting diode 13a. And a heat dissipation member 14 for dissipating heat generated by the second light emitting diode 13b, and fixed to the substrate 13 so as to be positioned between the cap 12 and the substrate 13, One or two holes 15a are formed to allow light generated from the first light emitting diode 13a and the second light emitting diode 13b to pass therethrough, and a packing 15b is formed at an outer circumference thereof. It is provided to prevent the inflow of water, dust and gas into the accommodation space (11b) of the case 11, the holder 15 for holding the condensing lens 16 to be described later, and is installed in the holder 15 A condenser lens 16 for collecting light generated in the first light emitting diode 13a and the second light emitting diode 13b in one direction, and one hole of the case 11 to be installed in the accommodating space 11b. 11c-1) and an adjustment knob 17a formed at one side is installed to be exposed to the outside of the case 11 to operate the first light emitting diode 13a and the second light emitting diode 13b. It consists of a switch 17 to adjust.

Here, the protective plate 18 of the transparent material is further provided between the cap 12 and the holder 15 so as to protect the condenser lens 16 exposed to the outside.

In addition, the lamp 10 is preferably detachably mounted to the helmet to be further provided with a locking piece 19 on the back of the case (11).

The heat dissipation member 14 is made of a material having high thermal conductivity to diffuse heat generated by the first light emitting diode 13a and the second light emitting diode 13b into the accommodating space 11b, and also to the case 11. It also plays the role of heat transfer.

And, as shown in Figure 6, it is preferable that the auxiliary heat sink 40 is further provided between the case 11 and the heat dissipation member (14).

The auxiliary heat dissipation plate 40 is formed in the same shape as the inner surface of the case 11 so that heat transmitted through the heat dissipation member 14 can be directly transferred to the case 11 rather than a predetermined portion. At the same time, it is installed to be in contact with the entire inner surface of the case (11).

The case 11 is made of nylon (NY) having excellent thermal conductivity so as not to be damaged by heat generated by the first light emitting diode 13a and the second light emitting diode 13b and heat transmitted through the heat radiating member 14. Is done.

The nylon is nylon 6 formed by polymerizing ε-caprolactam composed of 6 carbons as it is.

In addition, the case 11 is made of nylon (NY), in order to increase the mechanical properties, that is, strength, the thermal conductivity of nylon (NY) 75 to 95% by weight and aluminum oxide powder (Al ₂ with good rigidity and thermal conductivity) O ₃ ) 5 to 25% by weight, or 75 to 95% by weight of nylon (NY) and 5 to 25% by weight of iron dioxide (Fe ₂ O ₃ ), or 75 to 95% by weight of nylon (NY) and graphite (GRAPHITE) 5 Or 25 to 25% by weight, or nylon 75 to 95% by weight, aluminum oxide powder 1.6 to 21.6% by weight, iron dioxide 1.7 to 21.7% by weight and graphite 1.7 to 21.7% by weight.

Here, the aluminum oxide powder or iron dioxide or graphite or aluminium oxide and iron dioxide and graphite is not particularly effective in improving the mechanical properties, that is, strength when less than 5% is added, if more than 25%, sintering molding is difficult have.

The case configured as described above has a heat dissipation effect as shown in Table 1 below.

Table 1

turn Casey Secretion Heat dissipation member measuring temperature (℃) Aluminum Oxide (Al ₂ O ₃ ) Iron Dioxide (Fe ₂ O ₃ ) Graphite (GRAPHITE) Nylon (NY) Polycarbonate (PC) One 100 70.0 2 100% 66.5 3 5% 95% 65.3 4 5% 95% 65.3 5 5% 95% 65.3 6 25% 75% 64.5 7 25% 75% 64 8 25% 75% 64.2 9 7% 8% 8% 75% 63 10 1.6% 1.7% 1.7% 95% 65.2

Note) Room temperature 23 (℃), first light emitting diode supply current = 0.7A

The switch 17 may operate the first light emitting diode 13a and the second light emitting diode 13b individually or simultaneously, and may also operate the first light emitting diode 13a and the second light emitting diode ( The illuminance of 13b) can be adjusted step by step, and this configuration is a general configuration and a detailed description thereof will be omitted.

The battery pack 20 is provided with a rechargeable battery 21 therein, the power terminal 22 is formed so as to be exposed to the outside on both sides of the lower side, the battery pack 20 is easy to carry and can be used for a long time It is good to consist of an ion polymer battery.

And, it is preferable that the locking member 23 is further provided on the other side to be detachable to the user's waistband.

In this case, as shown in FIG. 7, the battery pack 20 is formed such that a plurality of power terminals 22 are exposed to the outside on both sides of one lower side of the battery pack 20, and is mutually shorted with the terminal 51 of the charger 50. And a switching terminal 24 for recognizing whether the battery is being charged by the charger, and installed inside the battery pack 20, and when the power supply of the switching terminal 24 is applied, the charger ( When the power of 50 is applied, it is preferable that the electronic switch 25 is further provided to drive and apply the power of the charger 50 to the rechargeable battery 21, wherein the electronic switch 25 of the switching terminal 24 The light emitting unit 25a which is driven when the power is applied, and the light receiving unit 25b that receives the light from the light emitting unit 25a and applies the power through the power supply terminal 22 to the rechargeable battery 21.

And, the charger 50 to charge the battery pack 20, the battery pack 20 is coupled to the receiving portion 52, the terminal 51 is provided as shown in FIG. The microcomputer 53 installed therein recognizes this, and applies an electric power for charging through the power terminal 22 of the battery pack 20, and when not charging, an electronic switch to cut off the power supply to the battery pack 20. It consists of a charger (50) having a microcomputer (53) for driving (25), the charger 50 is the power supply means 54 for supplying power and when the charging of the battery pack 20 is completed The lighting LED 55 for informing this is further provided.

Here, the power supply means 54 may be implemented as a battery or an adapter for converting and outputting a direct current.

Such a charger 50 is preferably made of a structure corresponding to the configuration of the battery pack 20.

The cable 30 is an article for sending power charged in the rechargeable battery 21 of the battery pack 20 to the first light emitting diode 13a and the second light emitting diode 13b installed in the case 11. Is connected to a substrate 13 on which the rechargeable battery 21, the first light emitting diode 13a, and the second light emitting diode 13b of the battery pack 20 are installed, respectively, and one end of the battery pack 20 is connected to the substrate 13. It is connected through the other hole (11c-2) of the case (11).

Here, the lamp 10 should be made of an explosion-proof structure, it is preferable that the plug 19-1 is further installed in the other hole (11c-2) through which the cable 30 penetrates for airtightness.

An operation state of the headlamp according to the present invention configured as described above will be described with reference to FIG. 8.

First, the battery pack 20 charged by the charger 50 is gripped and then worn on the belt using the locking member 23.

In this case, the switching terminal 24 of the battery pack 20 and the terminal 51 of the charger 50 are separated from each other, and thus the power terminal 22 and the rechargeable battery 21 of the battery pack 20 are separated from each other. Sparks may be prevented from being splashed by a gas or the like present in the tunnel.

Then, the lamp 10 is worn on the hard hat using the locking piece 19 provided in the case 11.

Subsequently, the first light emitting diode 13a and the second light emitting diode 13b are operated individually or simultaneously by operating the adjusting knob 17a of the switch 17, and then the illuminance is adjusted to enter the tunnel.

On the other hand, when the first light emitting diode 13a and the second light emitting diode 13b are operated, heat is generated, and the heat is diffused through the heat radiating member 14 into the receiving space 11b and at the same time the case 11 Heat transfer).

Then, the case 11 is made of a material having excellent thermal conductivity, thereby radiating heat to the outside.

When the work is finished and out of the tunnel, after removing the battery pack 20 installed in the lamp 10 and the waistband installed in the helmet, the battery pack 20 is inserted into the receiving portion 52 of the charger 50 to charge .

At this time, the terminal 51 provided in the accommodating portion 52 of the charger 50 and the switching terminal 24 of the battery pack 20 are short-circuited, thereby causing the light emitting portion 25a of the electronic switch 25 to be shorted. When the light is irradiated, the light receiving unit 25b recognizes this, and the power supplied through the power supply unit 54 of the charger 50 is charged to the rechargeable battery 21 through the power supply terminal 22.

As described above, the present invention uses the light emitting diode instead of the conventional tungsten filtrate bulb, and there is no residual trouble, it can be used for a long time, and the brightness is bright, thereby improving work efficiency.

In addition, by using a battery pack made of a light weight lithium-ion polymer battery, it is easy to carry and further includes a switching terminal and an electronic switch to solve the problem of sparks splashing due to the gas present in the membrane of the mine. There is.

In addition, since the heat radiating member is provided, heat generated from the light emitting diode is effectively diffused into the receiving space, and the case is made of a material having a good thermal conductivity, thereby being damaged by the heat generation of the light emitting diode, resulting in a low light emission performance. It has the effect of solving the problem of being shortened.

Claims (10)

A case having one side open and a receiving space; A through hole is provided inside, and a cap detachably fastened to the case, A substrate installed in the accommodation space and provided with first and second light emitting diodes; A heat dissipation member having one end connected to the substrate and the other end fixed to an inner surface of the case; A holder fixed to the substrate to be positioned between the cap and the substrate, the holder having a packing on an outer circumference thereof; A condenser lens installed on the holder; A control knob installed in the accommodation space and formed at one side of the control knob is configured to be exposed to the outside of the case and includes a switch for controlling light emission of the first and second light emitting diodes; A battery pack provided inside the battery pack and having a power terminal exposed to the outside; And The lamp is connected to the battery pack, characterized in that the headlamp comprises a cable for transmitting the power stored in the battery pack to the first and second light emitting diodes of the light bulb. The method of claim 1, The case is a head lamp, characterized in that made of nylon. The method of claim 1, The case is a headlamp, characterized in that consisting of 75 to 95% by weight of nylon and 5 to 25% by weight of aluminum oxide powder. The method of claim 1, The case is a headlamp, characterized in that consisting of 75 to 95% by weight of nylon and 5 to 25% by weight of iron dioxide. The method of claim 1, The case is a headlamp, characterized in that consisting of 75 to 95% by weight of nylon and 5 to 25% by weight of graphite. The method of claim 1, The case is a headlamp, characterized in that consisting of 75 to 95% by weight of nylon, 1.6 to 21.6% by weight of aluminum oxide powder, 1.7 to 21.7% by weight of iron dioxide and 1.7 to 21.7% by weight of graphite. The method of claim 1, An auxiliary heat sink is further provided between the heat dissipation member and the case. The method of claim 1, The battery pack is a head lamp, characterized in that made of a lithium ion polymer battery. The method of claim 1, The battery pack is formed to be exposed to the outside, and a switching terminal for short-circuit with the terminal of the charger to recognize whether the battery is being charged by the charger, and is installed inside the battery pack, when the power supply of the switching terminal is applied When the power of the charger is applied through the terminal headlamps, characterized in that the electronic switch for applying the power of the charger to the battery is further provided. The method of claim 9, The electronic switch includes a light emitting part for driving when power is applied to the switching terminal, and a light receiving part for receiving the light of the light emitting part and applying power to the battery through the power terminal.

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